PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4340Breech Cap

Ideal Products Inc. · NSN 1385-01-676-7841 · FSC 1385 · No Item Name Available
Verified by PartsTable
NSN 1385-01-676-7841 — this item is cataloged by the U.S. Government under National Stock Number 1385-01-676-7841. Primary manufacturer part number: 4340.
Features
  • Breech Cap — FSC 1385
  • 2 verified cross-references
  • Primary manufacturer: Ideal Products Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Breech Cap, cataloged under National Stock Number 1385-01-676-7841, is classified within Federal Supply Class 1385 (No Item Name Available) of the Ammunition and Explosives group. The primary manufacturer of record is Ideal Products Inc.. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1385-01-676-7841
Primary Part Number4340
Item NameBreech Cap
FSC / FSG1385 / 13 — No Item Name Available
ManufacturerIdeal Products Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3940-00-008-6144PDG4340 INTERCHANGEABLE
Adapter,hoisting
Champ Industries Div Champ Industries, Inc
5310-00-012-0622 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-429-3135Z098004340 INTERCHANGEABLE
Nut,plain,hexagon
Prestolite Electric Inc
6625-00-946-46194340 INTERCHANGEABLE
Resistor,switch Ass
Electro Scientific Industries Inc
5962-01-018-0554C9129-1 INTERCHANGEABLE
Microcircuit,linear
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
6240-01-024-13094340 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
5825-01-107-85854340 INTERCHANGEABLE
Monitor,phase
Active Control Instrumentation Aci
5305-01-293-95454340 INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
Cross-Reference Index
Part NumberManufacturer
4340 PRIMARY Ideal Products Inc. (USA)
4340 Epe Trusted to Protect Epe Oceania Pty Ltd (AUS)
Related Parts
3940-00-008-6144INTERCHANGEABLE
ADAPTER,HOISTING
PDG4340
5310-00-012-0622INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-429-3135INTERCHANGEABLE
NUT,PLAIN,HEXAGON
Z098004340
6625-00-946-4619INTERCHANGEABLE
RESISTOR,SWITCH ASS
4340
5962-01-018-0554INTERCHANGEABLE
MICROCIRCUIT,LINEAR
C9129-1
6240-01-024-1309INTERCHANGEABLE
LAMP,INCANDESCENT
4340
5825-01-107-8585INTERCHANGEABLE
MONITOR,PHASE
4340
5305-01-293-9545INTERCHANGEABLE
SCREW,SHOULDER
4340

Frequently Asked Questions

What is NSN 1385-01-676-7841?

NSN 1385-01-676-7841 is a Breech Cap, manufactured by Ideal Products Inc., classified under FSC 1385 (No Item Name Available). Status: active.

What are the part numbers for NSN 1385-01-676-7841?

NSN 1385-01-676-7841 has 2 cross-referenced part numbers: 4340 (Ideal Products Inc.), 4340 (Epe Trusted to Protect Epe Oceania Pty Ltd).

What NSN replaces 1385-01-676-7841?

There are 8 known substitutes for 1385-01-676-7841: 3940-00-008-6144, 5310-00-012-0622, 5310-00-429-3135 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4340?

Key specifications for 4340: Special Features: 1.50 INCH ACME THREADS IN; Part Name Assigned by Controlling Agency: BREECH CAP. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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